The LHCb experiment is charmed to announce observation of a new particle with two heavy quarks

The LHCb experiment at CERN’s Large Hadron Collider has reported the observation of Xicc++ — a new particle containing two charm quarks and one up quark. The existence of this particle from the baryon family was expected by current theories, but physicists have been looking for such baryons with two heavy quarks for many years. The mass of the newly identified particle is about 3621 MeV, which is almost four times heavier than the most familiar baryon, the proton, a property that arises from its doubly charmed quark content. It is the first time that such a particle has been unambiguously detected. […]Read More